Question [Q] Help me with Linaro-gcc compilation

Hi. I need your help.
Because I need to modify the cost of each instruction, I'm doing a compilation with linaro gcc source code.
Until now I use gcc-linaro-4.7-2013.04 which is in the linaro-toolchain-binaries 4.7 package(linaro hompage-Download-
Binaries-linaro-toolchain-binaries 4.7), and I didn't change anything yet.
I compiled with configure below.
./configure --prefix=/home/kynic0/workspace/linaro-gcc-built --target=arm-none-eabi
There is an error like this.
configure:3602: error: in `/home/kynic0/workspace/gcc-linaro-4.7-2013.04/arm-none-eabi/libgcc':
configure:3605: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
It is the contents in config.log file.

I tried re-downloading the source file, compiling several times, cleaning prefixed directory, but I really don't know what is problem.
Some people said that GDB is problem, but I can't catch the right way to solve it.

Please help this n00b.
I attached the log file.
Attached Files
File Type: txt config.log.txt - [Click for QR Code] (13.0 KB, 1 views)